Figure 5.

Accumulation of hydrogen peroxide (H₂O₂₎ and the expression levels of reactive oxygen species (ROS) scavenging genes and drought stress response genes in UGT85E1 transgenic lines. (A) DAB staining of UGT85E1 transgenic lines under control and mannitol treatments, scale bar = 2 cm; (B) Transcription levels of ROS scavenging enzyme genes in UGT85E1 transgenic lines under normal and drought stress conditions; (C,D) Proline and soluble sugar contents in rice leaf tissues sampled from UGT85E1 transgenic lines and WT plants under control and drought treatment conditions. (E) Expression levels of drought stress response genes in UGT85E1 transgenic lines. Error bars indicate the SD of three independent experiments. Statistically significant differences were determined by one-way ANOVA, followed by Tukey's test (P < 0.05).